//
//  JKVisitorView.swift
//  新浪微博
//
//  Created by Jack.Lin on 16/7/1.
//  Copyright © 2016年 Jack.Lin. All rights reserved.
//

import UIKit

class JKVisitorView: UIView {
    
    //  注册按钮
    lazy var registerButton: UIButton = UIButton.cz_textButton("注册",
                                                                       fontSize: 16,
                                                                       normalColor: UIColor.orange(), highlightedColor: UIColor.black(), backgroundImageName: "common_button_white_disable")
    // 登录按钮
    lazy var loginButton: UIButton = UIButton.cz_textButton("登录",
                                                                    fontSize: 16,
                                                                    normalColor: UIColor.darkGray(),
                                                                    highlightedColor: UIColor.black(),
                                                                    backgroundImageName: "common_button_white_disbale")
    
    // MARK - 设置访客视图信息
    var visitorInfo: [String: String]? {
    
        didSet {
        
            guard let imageName  = visitorInfo?["imageName"],
                message = visitorInfo?["message"]
                else {
                    return
            }
                
            tipLabel.text = message
                
            if imageName == "" {
                startAnimation()
                
                return
            }
                
            iconView.image = UIImage(named: imageName)
            
            houseIconView.isHidden = true
            maskIconView.isHidden = true
        }
    }

    override init(frame: CGRect) {
         super.init(frame: frame)
        
        setupUI()
       
    }
    
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    private func startAnimation() {
    
        let anim = CABasicAnimation(keyPath: "transform.rotation")
        
        anim.toValue = 2 * M_PI
        anim.repeatCount = MAXFLOAT
        anim.duration = 15
        
        anim.isRemovedOnCompletion = false
        
        iconView.layer.add(anim, forKey: nil)
    }
    
    
    
    // MARK - 私有控件
    /// 懒加载属性只有调用 UIKit 控件的指定构造函数, 其它都需要使用类型

    private lazy var maskIconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))

    
    // 图像视图(圈子)
    private lazy var iconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_smallicon"))
    
    // 小房子 
    private lazy var houseIconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))
    
    // 提示标签
    private lazy var tipLabel: UILabel = UILabel.cz_label(withText: "关注一些人, 回这里看看有什么惊喜关注一些人, 回这里看看有什么惊喜",
                                                          fontSize: 16,
                                                          color: UIColor.darkGray())
  
}


// MARK: - 设置界面
extension JKVisitorView {
    
    func setupUI() {
        backgroundColor = UIColor.cz_color(withHex: 0xEDEDED)
        
        addSubview(iconView)
        // 注意视图的添加顺序
        addSubview(maskIconView)
        addSubview(houseIconView)
        addSubview(tipLabel)
        addSubview(registerButton)
        addSubview(loginButton)
        
        tipLabel.textAlignment = .center
        
        for v in subviews {
            // 取消 autoresizing
            v.translatesAutoresizingMaskIntoConstraints = false
            
        }
        
        let margin: CGFloat = 20.0
        
        addConstraint(NSLayoutConstraint(item: iconView,
                                         attribute: .centerX,
                                         relatedBy: .equal,
                                         toItem:  self,
                                         attribute: .centerX,
                                         multiplier: 1.0,
                                         constant: 0
                                         ))
        addConstraint(NSLayoutConstraint(item: iconView,
                                         attribute: .centerY,
                                         relatedBy: .equal,
                                         toItem: self,
                                         attribute: .centerY,
                                         multiplier: 1.0,
                                         constant: -60))
    
        addConstraint(NSLayoutConstraint(item: houseIconView,
                                         attribute: .centerX,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .centerX,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: houseIconView,
                                         attribute: .centerY,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .centerY,
                                         multiplier: 1.0,
                                         constant: 0))
        
        addConstraint(NSLayoutConstraint(item: tipLabel,
                                         attribute: .centerX,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .centerX,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: tipLabel,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: margin))
        addConstraint(NSLayoutConstraint(item: tipLabel,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: nil,
                                         attribute: .notAnAttribute,
                                         multiplier: 1.0,
                                         constant: 236))
        
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .left,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .left,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: margin))
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: nil,
                                         attribute: .notAnAttribute,
                                         multiplier: 1.0,
                                         constant: 100))

        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .right,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .right,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: margin))
        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: registerButton,
                                         attribute: .width,
                                         multiplier: 1.0,
                                         constant: 0))
        // 遮罩图像
        // views: 定义 VFL 中的控件名称和实际名称映射关系
        // metrics: 定义 VFL 中 () 指定的常数影射关系
        let viewDict = ["maskIconView": maskIconView,
                        "registerButton": registerButton]
        let metrics = ["spacing": 20]
        
        addConstraints(NSLayoutConstraint.constraints(
            withVisualFormat: "H:|-0-[maskIconView]-0-|",
            options: [],
            metrics: nil,
            views: viewDict))
        addConstraints(NSLayoutConstraint.constraints(
            withVisualFormat: "V:|-0-[maskIconView]-(spacing)-[registerButton]",
            options: [],
            metrics: metrics,
            views: viewDict))
        

    }
}
